Please write clearly in block capitals.
Centre Candidate
number number
Surname
Forename(s)
Candidate ure
signat
A-level
BIOLO
GY
Paper 1
June 2024 Afternoon Time allowed: 2 hours
Materials
For Examiner’s Use
For this paper you must have:
a ruler with millimetre measurements Question Mark
a scientific calculator. 1
2
Instructions
Use black ink or black ball-point pen. 3
Fill in the boxes at the top of this page. 4
Answer all questions. 5
You must answer the questions in the spaces provided. Do
6
not write outside the box around each page or on blank
pages. 7
If you need extra space for your answer(s), use the lined pages at 8
the end of this book. Write the question number against your 9
answer(s).
Show all your working. 10
Do all rough work in this book. Cross through any work you do TOTAL
not want to be marked.
Information
The marks for the questions are shown in brackets.
The maximum mark for this paper is 91.
,7402/1
, 2
Do not write
outside the
Answer all questions in the spaces box
provided.
0 1 . 1 Figure 1 shows the structure of a fatty acid molecule and the structure of a
glycerol molecule.
Figure 1
On Figure 1, draw a circle around the part of the fatty acid molecule and the
part of the glycerol molecule that is removed to form a bond in a
triglyceride molecule.
Name the bond formed between a fatty acid and glycerol in a triglyceride
molecule.
Name the reaction involved in forming a bond between a fatty acid and
glycerol in a triglyceride molecule.
[3 marks]
Bond
Reaction
IB/M/
Jun24/7402/1
, 3
Do not write
outside the
Table 1 shows information about three fatty box
acids.
Table 1
0 1 . 2 Name the fatty acid shown in Table 1 that is a saturated fatty acid.
[1 mark]
0 1 . 3 The melting point is the temperature at which a solid changes state to be a
liquid.
Use Table 1 to describe the relationship between fatty acid structure and
fatty acid melting point.
[1 mark]
Question 1 continues on the next page
IB/M/
Jun24/7402/1
Centre Candidate
number number
Surname
Forename(s)
Candidate ure
signat
A-level
BIOLO
GY
Paper 1
June 2024 Afternoon Time allowed: 2 hours
Materials
For Examiner’s Use
For this paper you must have:
a ruler with millimetre measurements Question Mark
a scientific calculator. 1
2
Instructions
Use black ink or black ball-point pen. 3
Fill in the boxes at the top of this page. 4
Answer all questions. 5
You must answer the questions in the spaces provided. Do
6
not write outside the box around each page or on blank
pages. 7
If you need extra space for your answer(s), use the lined pages at 8
the end of this book. Write the question number against your 9
answer(s).
Show all your working. 10
Do all rough work in this book. Cross through any work you do TOTAL
not want to be marked.
Information
The marks for the questions are shown in brackets.
The maximum mark for this paper is 91.
,7402/1
, 2
Do not write
outside the
Answer all questions in the spaces box
provided.
0 1 . 1 Figure 1 shows the structure of a fatty acid molecule and the structure of a
glycerol molecule.
Figure 1
On Figure 1, draw a circle around the part of the fatty acid molecule and the
part of the glycerol molecule that is removed to form a bond in a
triglyceride molecule.
Name the bond formed between a fatty acid and glycerol in a triglyceride
molecule.
Name the reaction involved in forming a bond between a fatty acid and
glycerol in a triglyceride molecule.
[3 marks]
Bond
Reaction
IB/M/
Jun24/7402/1
, 3
Do not write
outside the
Table 1 shows information about three fatty box
acids.
Table 1
0 1 . 2 Name the fatty acid shown in Table 1 that is a saturated fatty acid.
[1 mark]
0 1 . 3 The melting point is the temperature at which a solid changes state to be a
liquid.
Use Table 1 to describe the relationship between fatty acid structure and
fatty acid melting point.
[1 mark]
Question 1 continues on the next page
IB/M/
Jun24/7402/1
